Railway draft-rigging



W. H. MINER AND J. F. OCONNOR.

RAILWAY DRAFT RIGGING.

APPLICATION FlLED MAR. 15. I920.

PatentedSept. 20, 1921.

2 SHEETS-SHEET I.

W. H. MINER AND J. F. OCONNOR.

RAILWAY DRAFT RIGGING.

APPLICATION FILED MAR. 15,1920.

2 SHEETSSHEET 2.

WWII/Willi? & y Q Q A i wrnnrm n.

UNITED STATES PATENT OFFICE.

MINER, or onAzY, NEW YORK, AND JOHN F. O'CONNOR, or CHICAGO, ILLINOIS;SAID ooomron ASSIGNOR ro SAID MINER.

RAILWAY DRAIT-RIGGING.

The object of. the invention is to provide an economical friction draftrigging for railway cars wherein the usual space between the sills isutilized for the friction ele ments proper and the spring resistancesare disposed outside of the sills in space not now usually occupied.

In the drawing forming a part of this specification, Figure 1 isahorizontal :longitudinal sectional view of a portion of a railway draftrigging showing our' improvements employed in connection therewith. Fig.2 is a vertical transverse sectional vlew taken substantially on theline 2'2 of Fig. 1. And Fig. 3 is a detail perspective of on of themovable friction elements.

In-said drawing 1010. denote channel shaped center or draft sills of arailway car arranged in a well known manner. Secured to the inner facesof said sills are stop castings or cheek lates each designatedby thereference A. ach of said castings A provides a front stop shoulder 11and a rear stop shoulder 12 as clearly indicated in Fig. 1. A moredetailed description of said castings A will be found hereinafter. Aportion of a drawbar is indioated at 13, the same being operativelyassociatedwith the shock absorbing mechanism by means of a yoke 14 ofwell known form. In carrying out our invention, we employ a frontfollower 15, rear follower 16, a pair of laterally movable frictionelements 17-47;, laterally arranged springs 18, loops 19, links 20 andstationary inclines formed on the castingsA, hereinafter described.

Each of said castings A is formed with two substantially triangularformations at their centers which extend inwardly toward the center lineof the gear, said triangular 'Specificationof Letters Patent. Pate t d Spt 20 192 Application filed. March 15, 1920. Serial No. 365,798.

formations providing a parallelly arranged "l2112l and 122-122 adaptedto c06perate respectively with the inclines 21 and 22. The shoes 17 areformed at their ends with flat transversely extending friction surfaces23--23 which are adapted to cooperate with theinner faces of thefollowers 15 and 16.

The shoes 17 are centrally slotted as indicated at 24150 accommodate thelinks 20, the latter being secured to the correspondng shoes 17 by heavypins 25,.the heads of which are preferably counter-sunk within the shoesso as to avoid any obstruction as the shoes move'laterally toward eachother within the arms of the yoke 14. The links 20 pass outwardlythrough suitable slots in i the castingsA andsills 10 and at their outerends are pivotally connected to slidable blocks 29 by means of heavypivot pins 30. The loops 19 are also pivotally connected to said blocks29 by the same pins 30as clearly indicated in Fig. 2.'

The blocks 29 are slidably guided within 'U-shaped stirrup plates 31which form fixed bearings for the inner ends of. the springs 18. It willbe noted from an inspection of Fig. 2 that the loops 19 straddle thestirrup plates 31 so that said plates 31 assist in properly sustainingthe loops and springs. Preferably, separable followers 32 are employedat the outer ends of the springs 18 within the loops 19, said followers32 having suitable projections 33-33 to straddle the loop and maintainthe followers in proper position. I

U From an" inspection of Fig. 1, it will be noted that the followers15'and 16-are normally spaced from the respective stops 11 and 12 adistance corresponding to the permissible movement. of the draftrigging. Also, it will be seen that the shoes 17 are in their outermostposition, that is, are separated the maximum amount. In operation, andassuming a bufling or inward movement ,of the drawbar, it is evidentthat both followers 15 and 16 will move rearwardly simultaneously anduniformly with the sills; connecting means between said spring tainedwhen the rear follower 16 engages the rear stops 12. Upon removal of theactuat- 'ing pressure, the expansion of the springs 18will re-actthrough the loops 19 and links v2O to return the shoes, 17 to theirnormal position.

Various changes and modifications may be made in the details ofconstruction and arrangement of parts without departing from the spiritof our invention and all such changes and modifications are contemplatedas come within the scope of the claims appended hereto. i

We claim: v

1. In a railway draft rigging thegc'ombisets of inclines on their innerfaces; of later ally inward and longitudinally movable friction shoescooperable with said inclines; spring resistances disposed outside ofthe resistances and shoes; followers at the ends of'said shoes inengagement therewith; and stops with which said followers are adapted tocooperate. v a

2. In a railway draft rigging, the combination with draft sills havingoppositely extending sets of stationary inclines on their inner faces;of laterally inwardly and longitudinally movable friction shoes cooper-V able with said inclines; means for actuating lowers being said shoes;laterally extending springs on the outer sides of said sills; loopsinclosing said springs; and link connections between the shoes andtheloops.

In a railway draft rigging, the combination with draft sills eachprovided on its 7' inner face with oppositely extending pairs ofparallel inclined friction surfaces; a pair of friction shoes, each ofsaid shoes being provided on its outer side with oppositely,

inclined pairs of parallel friction surfaces cooperable with saidstationary inclines; followers at the ends of said shoes, thefolsimultaneously movable; spring resistances disposed outside of thesills; and operative connections betweenthe spring resistances and saidshoes. I

4. In a railway draft rigging,the ciombinationwith a drawbar, yoke, andfront and rear followers; of draft sills; laterally extending springs onthe outer sides of said sills; friction shoes disposed between the sillsand between said followers said shoes being laterally and longitudinallymovable;

operative connectionsbetween said shoes and springs adapted to compressthe latter upon actuation of the shoes; and stationary means havinginclines, said shoes being provided with cooperating inclined faces.

' 5. In a railway draft rigging, the coinbination with a drawbar, yoke,and front and rear followers; ofdraft sills; laterally extending springson the outer sides of said sills; friction shoes disposed between thesills and between said followers, said shoes being laterally andlongitudinally movable;

operative" connections between said shoes and springs adapted tocompress the latter upon actuation of the shoes; and stationary meanshaving inclines, said shoes being provided with cooperating inclinedfaces, said 7 stationary means being provided also with nation withdraft sills having stationary stop shoulders normally spaced from thefollowers and adapted to 'limitthe moiements of the latter. 7

6. In a railway draft rigging, the conrbination with draft sill's;-ofstop castings secured to the inner faces of said sills, each of saidstop castings having front andrear the followers and provided withinclined faces 'cooperable with said stationary. inclines; laterallyarranged springs disposed outside of the sills; fixed bearings for theinner ends of said-springs; members en-' circling said springs; and linkconnections between said members and said frlction shoes, said followersbeing normally spaced from the stop shoulders and the latter adapted tolimit the'movement of the mech-' v anism.

In witness that we claim the foregoing v we have hereunto subscribed ournames'this 21st day of February, A. D. 1920.

WILLIAM H. MINER. JOHN oooNNo Witness CARRIE GAILING.

